Sound-box.



LHomw; SOUND BOX. APPLICATIUI fILvEl-IAL I3, UH.

Pafnwd 0d. 24,1916.

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SOUND BOX.

Arrucmon msn un. la. |914.

Patented Oct. 24, 1916.

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SOUND BOX.

APPLICATION ILED IAL 13, 19N.

1,202,520. Patented Oct 24,1916.

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OFFICE.

.ross Hoarau?, or Lennon, ENGLAND.

soUNn-Box.

Specification o! Letters Patent.

Patented Oct. 24, 1916.

Application illed Match 13, 1914. Serial No. 824,444.

To all 'whomtmay conc m.'

Be it known that I, osi: Horny, a citi zen of the Republic of Mexico, and a resident of London, En land, have invented certain new and use l Improvements in Sound-Boxes; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to improvements in sound boxes or the like for gramophones, phonographs and the like machines wherein the supporting means on which the stylus lever oscillates is insulated brubber or other insulating means from t e casing vof the sound box. Such insulation is not per .se new but the improvements constituting mfyt' invention are more a er indicated.

.My invention is illustrated in connection with stylus levers made of a `forked formation, the bifurcations Straddling the diaphragm, which form the subject matter of other applications `for Letters Patent, but my invention is not limited to the .use of a forked stylus lever and covers the use of any suitable form of stylus lever in com' bination with my improved jinsulating means. V I

My invention consists in forming or 4mounting the pivots or bearings about which the stylus .lever oscillates on .a carrier which is itself rigid and is preferably aY compllte ring thong` it may be part of a ring. is ring orY art of av ring is insulated from the soun box-by a ring or part ring of rubber or similar insulatin material surroundin the sound box an .the tension of this in ator is preferably adjustable. The carrier thus forms a oatm ring or section of rin thoroughly insulate from the sound box wile at t e same time the adjustment of the stylus lever on its rigid carrier can be readily made.

M invention is illustrated by w'a of examplb in connection with bifurcate. stylus levers in the accompanying drawings, in which Figure 1 is a transverse section of one construction of sound box; Fig. 2 is a face view thereof, the left hand bottom quadrant being in section on 2 2, Fig. 1 F 3 is an en- -larged diagrammatic sectiona plan of a detail, on 3 3., Fig. 1 Fig. is an eleva tion of a modification; "g. 5 1s a transverse section partly in side elevation of another particularly hereinmodification; Fig. 6 is a transverse section of another modification; Fig. 7 is a face view, partly .in section, of another modification, Fig. 8 1s an elevation of another modificatlon; Fig. 9 is a face view partly in sec` tion of another modification; Fig. 10 is a transverse section of a detail.

The pivots, 1, on which the stylus lever, 2, pscil ates, may be mounted in brackets, 3, integral with a carrier, 4, applied to the casing, 5, of the sound box (Fig. 2), or. directly on the carrier (Fig. 7). The carrier is preferably in the form of a ring surrounding the casing, 5, (Fig. 2). Or, may be in the form of a part or partsof a ring not completely surrounding the casing (Fig. 9).

The carrier is insulated from thecasing,

"5,4 by an insulator, 6, preferably a rubber or t e like ring fitting around the casing, (Fig. 2). Or, the insulator may consist of an incomplete rin not completely surrounding the casing Fig. 9). The carrier in order to prevent lateral movement or creeping may be located in a peripheral channel, 7, in theinsulator, 6, (Figs. 1 and 10) or may engage with lugs, 8, (Fig. 6) on the insulator.

By constructing the insulator as described, it resents a large area in contact with the casing and with the carrier, and owing to thisl the insulating action is not concentrated at any one point but is distributed to many points. Soft rubber may be employed to prevent to a maximum extent harmful transferenceof vibratory action as well as a rigid connection between the rigid carrier and the sound box casing, while presenting suicient rigidity to the fulcrum of the stylus lever which is so indispensable in,

order to obtain large volume and faithfulness of sound re roduction. The insulator may be held in p ace bya flange on the back, 9, f the casin and a front ring,.10, in which case the ackof the casing is formed or provided with the usual tubular extension, 11, for connection to the tone arm, trumpet or the like, (Fig.- 1) or,'by a flange on the front, 12, of the casin and a back disk, 13, formed or provided with the usual tubular extension11, (Fig. 5). Screws, 14 may be used for connectin the parts,.9 and 10, or 12 and 13, and a )listing the coinression of the insulator to the degree of rmness to give the best results. These Aelastic means, preferably o screws may pass through the carrier without contact therewith (Fig. 9 right hand side). The usual diaphragm, 15, ma convemently be located by rubber or the li e gaskets, 16, which may be held by the parts, 9 and 10, or 12 and 13.

The pivots, 1, may be adjusted to best suit working requirements (Fig. 2) and secured by lock nuts 3B, or the bearings on the stylus lever may be ,independently adjusted against the pivots for such purpose. (Fig. 7), 1n known manner.

The stylus lever as illustrated comprlses two bifurcations, 18, 19, which straddle the diaphragm, one on the outer side, and the other on the inner side and passing through an opening, 20, in the tubular extension, 11, without contact therewith. The bifurcations on opposite sides are connected to the.

diaphragm and to one another under stress by means preferably passing through the diaphragm. The bifurcations may be kept under stress by means such as a bolt and nuts, 21, 22, (Fig. 4), pulling or tying them toward one another to the relative positions shown in full lines, from what would be their natural unrestrained relative positions shown in dottedlines. Or, the bifurcations may be kept under stress b v means such as a bolt and nuts, 23, 24, (Fig. 5), splaying 'or strutting them apart from what would be their natural relatlve positions shown in dotted lines. The bifurcations may be insulated from the diaphra m, b making the connectors of Wood or t e li e insulating substance, or in other suitable manner.

In lieu of rigid means for connecting the bifurcations to the diaphra liexible ingnein insulating jute or may be conveniently be nature, such as a taut silk hem other cord or the like, 25,(Fig. 1 employed. The cord ma)1 formed as an endless plain or twisted loop engaging notches,- 26, 1n the bifurcations as shown in Fig. 3, and` knotted and waxed at 27. The cord may be secured to the diaphragm by another loop or cord, 28, knotted' and waxed, at 29, on one side, of the diaphra embracing the loop, 25, at'its midengt and knotted and-waxed at 30, on the other side 'of the diaphragm.

The insulation of the carrier and stylus lever from all metallic connection with the diaphragm and the rest of the sound box is of advantage in eliminating all metallic sound. x

In the modification represented in Fig. 8, a forked stylus lever is represented for operating two diaphragms. The diaphragms are mounted insound boxes which are duplicates of that represented' in Fig. 5, and may be connected to a trumpet or trumpets in any convenient manner.' The sound boxes are arranged faci one another and may be spaced apart y a yoke or yokes, 31, made fast to the two carrier rings, 4. The forked stylus lever is pivoted on one of the yokes, at 1, and the bifurcations, which are under stress extend, on the inner sides of the diaphragms through the tubular extensions, 11, and are connected to ,the diaphragms by a connector, 32, preferably passing through both diaphragms.

What I claim as my invention and desire to secure by Letters Patent is '1. In sound recording or reproducing means, in combination, a' sound box, a rigid carrier at the periphery of the soundbox, a layer of insulating material separating the carrier from the sound box in a lateral direction as well as in a radial direction so that the carrier is a floating cartier, a stylus lever, and rigid means on the carrier supporting the stylus lever with facility of oscillating freely without contact with and independently of the insulator.

2. In sound recording or reproducing means, in combination, a sound box, an annular rigid carrier surrounding the sound box, an annulus of insulating material separatingV the carrier from the sound box 'so that the carrier is a floating carrier, a stylus lever, and rigid means on the carrier supporting the stylus lever with facility of oscillating freely without contact with and independently of the insulator.

3. In sound recording or reproducing means, in combination, a sound box, a rigid carrier at the periphery of the sound box, a layer of insulating material separating the carrier from the sound box, means for independently adjusting the insulator in a di- -rection transverse to the plane of the sound box, stylus lever, and rigid means on the carried? supporting the st lus lever with facility of oscillating freel;r without contact with and inde endently of the insulator.

4. In soun recording or reproducin means, in combination, a sound box, a rigi carrierat the periphery of the sound box a layer of insulating material separating the carrier from the sound box in a lateral direction as well as in a radialdirection and supporting the carrier on the sound box a stylus lever, and rigid means on the carrier pivotally supporting the stylus lever with facility of oscillating freely without contact with and independently of the insulator, said pivotal sup orting means being of an independently a justab e nature.

sound recording or reproducin means, in combination, a sound' box, a rigi carrier at. the periphery of the sound box, a layer of insulating material separating the carrier from the sound box in a lateral direction as well asin a radial direction, ri 'd brackets integral with the carrier, ri 'd plvots adjustably supported b the brac ets and adapted. to s u port a sty us lever with fas cility of oscillating freely without contact layer of insulating material vseparating the carrier from the sound box, .and engaging flever with 'facility-of with and ,independently .of '1f-.ts immer, and means for locking the pivots tion.

f 6. In sound recording or reprodue" rial separating the carrier from the sound box and Vsupporting thecarrier on the sound box, a stylus 1ever,1igid mean's'on the carrier pivotally supporting the stylus -lever with facility of oscillating freely without contact with and independently of thev insulator, said pivotal supiorting means bein of an independentlya instable nature,` an means for independentlyadwsting the insulator in a direction transverse to the plane of the sound box. A

7 In sound recordingY br reproducing means, in combination, a vsound box, a rigid carrier at the periphery of the sound box,a

the carrier so as -to bodily obstruct its lateral displacement, a styluslever, and rigid means on the carrier suporting'the stylus ting freely without contact with and independently of the insulator."`

In sound recording or reproducin means, in combination, a .sound box, a rigi carrier at the periphery of the sound box a layer of insulating material separating tbe carrier from the sound-box' and e' eral Aand circumferential displacement, a

stylus lever, and rigid means onthe carrier supilorting the stylus lever with facility; of osc `xneanain combination, 'a sound box, 'angx t carrier at the periphery -of .the `sound box, a Vj incasso 1 n ange on the sound box for the inv sulator, a stylus lever, and rigid means on means, in combination, a sound -box,`a r1 carrier, means composed of. insulating 4mate-1f 44carrier surround' and rigid means on the car the stylus lever with Vfacilit of osclllatin msulator.

layerof insulatingV material separating the carrier from the sound libx, a. Yring and a the carrier supporting the stylus lever with facility of oscillating freelfy without contact `with and independently o the insulator.

i 10. In sound recording or reproducing means, in combination, a sound box, a rigi y the sound box, a rin of insulating materia Vbetween the. sound ox and the carrier and serving to insulate the carrier from thesound box and vto engage thecarrier against lacement, a'ring and a llange 4on the sound4 o'x serving to locate and adjust the rassure of' theinsulatorz a'4 11. In sound recording or reproducin means, in combination, a soundbox, a rigi Acarrier at the lperpheryoftlie sound box, a

v,layer of insulating material of' channelY` shaped'- cross section between the sound'box an 4the carrier and engaging tli f the carrierand serving to insul tethe carrier from the sound box and/to prevent it' 'from lateral displacement, and members onv the sound box serving yto locate and adjust the pressure ofthe insulator a stylusleven i'ier supporting freely without contact with and indepen -4 ently of .the insulator.

esides ofstylus lever, an rigid means onthe carrier A In testimon whereofI aix my signature u Y inpresence o two subscribingY witnesses.

V Y JOSE Horny,- witness,"

Ammin DAY,

Dar. 

